Leather-dressing machine.



0. F. FElX.

LEATHER DRESSING MACHINE. 7

APPLICATION FILED JULY2| 19:5. RENEWED NOV-4.1916. I

Patented Dec. 12, 1916.

2 SHEETSSHEET I- Allomey O. F. FEIX. LEATHER-DRESSING MACHINE. APPLIG-ATION FILED .IULYZ. 1915. RENEWED NOV. 4. 19m.

Patented Dec. 12, 1916.

2 SHEETS-SHEET 2- W1 TNESSES:

OTTO FELIX EEIX, OF WEST HOEOKEN, NEW JERSEY.

LEATHER-DRESSING maciiinn.

Specification of Letters Patent.

Application filed July 2, 1915, Serial No. 37,750. Renewed November 4, 1916. Serial No. 129,634.

To all whom it may concern Be it known that I, O'r'ro F. FEIX, a citizen of the United States, residing at West Hoboken, in the county of Hudson and State of New Jersey, have invented a new and useful Leather-Dressing Machine, of which the following is a specification. I

This invention has reference to leather dressing machines, and is designed to provide an abrading machine for fine tanned leather.

In accordance with the present machine there is provided an adjustable carriage provided with a pressure plate movable toward and from an abrading roll against whichthe hide to be treated is forced with suitable pressure. The pressure plate has a smooth hard surface and is so related to the abrading roll as to force the leather being treated against the latter, means being provided for adjusting the pressure, and in conjunction with the pressureplate suitably geared and timed feeding rollers are mounted on the carriage, and by preference have their active surfaces longitudinally grooved with the grooves at a slight angle to the axis of rotation. In order to clean the abrading roll there is provided an emery wheel mounted at that side of the abrading'roll remote from the pressure plate, which emery wheel may be put into action occasionally and as often as needed to keep the abrading roll clean.

The present invention is an improvementupon the machine shown and described in Letters Patent No. 636,970, granted to me on November 14,1899, and bythe present invention the structure of such patented ma: chine is materially simplified.

The invention will be best understood from a consideration 'of'the following detailed description, taken in conne tion with the accompanying drawings forming a part of this specification, with the further understanding that while the drawings show a practical form of the invention the latter is not confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications come within the scope of the appended claims.

In the drawings, Figure 1 is a perspective view of a machine constructed in accordance ble of sliding lengthwise in the guides and provided on top with a table 4.

Each end 3 of the carriage is traversed by a stop screw 5 tapped therethrough. These screws have manipulating hand wheels 6 in accessibleposition, the handwheels being conveniently located beneath what may be termed the outer edge of the table 4, while the other ends of the stop screws have uprights 7 in their path, which uprights rise from the top of the frame 1 and are utilized to carry bearings8 for a shaft 9 hereinafter referred to.

Patented Dec. 42., 1916..

Pivoted to the frame 1 at appropriate points a are angle levers 10 each having a short arm 11 engaging a pin 12 on one of the carriage ends 3. The other end of the lever 10 is pivoted to a link 13 including an adjusting turn buckle 13 Each link 13 at the end lever 14 near its fulcrum. The levers 14 are connected at one end by a foot board 15 andat the other end each lever carries a weight 16 fastened to the lever by a set screw 17 so that itv may be adjusted as desired.

That end of the carriage 3 remote from the hand wheels 6 has fast thereto a pressure plate 18 having an appropriately curved face 19 on the sideaway from the carriage.

That edge of the pressure plate 18 which may be termed the upper edge is curved and thinned as shown at 20, and the thin edge 20 matching, so as to firmly grasp without in- .remote from the lever 10 is pivoted to a".

jury a'hideor other piece of leather fed between them. The grooves need not'be straight throughout, or be parallel with the axis of rotation, but may be arranged at a slight angle to such axis or in suitably gentle curves. The roller 21 is carried by a shaft 24 journaled in the carriage ends 3. Since the carriage is slidable and carries the roller 21, pressure applied upon the treadle 15 causes the carriage 3 to slide toward the operator standing on the same side of the machine, wherefore the roller 21 is moved away from the roller 22. WVhen the treadle 15 is relieved from pressure, the weights 16 return the parts to the first'position to thereby cause the rollers 21 and 22 to grip leather introduced between them and to force the pressure plate 18 away from the operator to the extent permitted by the stop screws 5 engaging the stop members 7.

On opposite sides of the top of the frame 1 and in suitably spaced relation to the carriage 3 are/journal bearings 27 in which are mounted a shaft 28 carrying an abrading roll 29. The shaft 28 has a pulley 30 on one end to-which power may be applied by a belt, as usual, or any other driving means adapted for the purpose may be used. v

In order to transmit power from the shaft 28 constituting the main or driving shaft of the machine, to the feeding rollers 21 and 22, a worm 31 is mounted on the end of the shaft 28 in position to mesh with a worm wheel 33 on a counter-shaft 34 in bearings 35 on the frame 1. A bevel gear wheel 36 is secured to the shaft '34 and meshes with a bevel pinion 37 on a stub shaft 38 projecting from the'frame 1. Fast to the pinion 37 is a gear wheel 39 meshing with an idler gear wheel 40-carried by the frame 1., The gear 40 is positioned to mesh with a gear wheel 41 on the shaft 24 and the gear wheel 41 is movable with the carriage 3 to mesh with a gear wheel 42 on the shaft 9.

The gearing connecting the shaft 28 to the feed rollers is so proportioned that the abrading roll can be driven at a sufficiently high speed, say, from 750 to 900 r. p. m., while the rollers 21 and 22 are driven, say, 26 to 30 r. p. m. These rates may, of course, be different from those stated.

On that side of the abrading roll remote from the presser plate 18 there is'mounted.

a shaft 43 carrying an emery wheel 44 and so arranged that the emery wheel may be moved from time to time as by set screws 45 into engagement with the periphery of the abrading roll to remove therefrom any material which may accmuulate thereon and be detrimental to the action of the abrading roll upon the leather being treated. The emery wheel is so mounted as to be moved along the shaft v44 in parallelism with the axis of rotation of the abrading'roll and as the emery wheel need be used but occasionally, it is moved out of contact with the abrading roll when not needed,

treated. The machine of the present invention while useful for various leathers, is particularly useful in the treatment of finc tanned skins for gloves. The feed rollers will properly open and stretch such skins and the whole structure is of extremely simple construction, thereby saving both in first cost and in the cost of operation.

The pressure plate advantageously replaces the revolvmg rubber pressure roller of the aforesaid patent and a certain amount of gearing. Furthermore, the pressure plate eliminates any liability of doubling up the skins and losses cause thereby.

Vhile for convenience it is preferred to employ an emery wheel for cleaning the abrading roll, it will be understood that an emery or carborundmn brick or block could be so used, being occasionally pressed against the abrading roll to remove all matters the presence of which is not desirable. ()rdinarlly hand power is ample for cleaning the abrading roll, but it will be understood abrasive roll, means for limiting the approach of the presser plate toward the abrasive roll, and feeding rollers for delivering the leather to and between the presser plate and abrasive roll.

2. In a machine for treating fine tanned leather, a positively driven abrasive roll, a non-rotatable presser plate with a hard. smooth, unyielding surface presented toward the abrasive roll, said presser plate having a constant tendency toward the abrasive roll with said .presser plate substantially unyieldable in a direction away from the abrasive roll to the passage of the leather being treated between said plate and abrasive roll, and means for delivering the leather to and between the presser plate and abrasive roll.

3. In a machine for treating fine tanned leather, a positively driven abrasive roll. a non-rotatable presser plate with a hard,

mosaic I comprising feeding rollers with surfaces shaped to stretch the latter passing between them.

4. In a machine for treating fine tanned leather, a positively driven abrasive roll, a carriage movable toward and from the roll, gravity means for imparting to the carriage a constant tendency to move toward the roll, manipulating means for-the carriage for moving it in opposition to the gravity means, stop means for the carriage for positively limitin its movement toward the roll, an unyielding non-rotative presser plate mounted on the carriage to move there with and provided with a hard, smooth surface presented toward the abrasive roll to hold leather passing between the plate and roll substantially unyieldingly against the latter, and feeding rollers for delivering leather to and between the presser plate and abrasive roll. i

5. In a machine for treating fine tanned leather, a positively driven abrasive roll, a carriage movable toward and from the roll, gravity means'for imparting to the carriage a constant tendency to move toward the roll, manipulating means for the carriage for moving it in opposition to the gravity means, stop means for the carriage for positively limiting its movement toward the roll, an unyielding, non-rotative presser plate mounted on the carriage to mOve there with and provided with a hard, smooth surface presented toward the abrasive roll to hold leather passing between the plate and roll substantially unyieldingly against the latter, and feeding rollers for delivering leather to and between the presser plate and abrasive roll, one of the rollers being mounted on the carriage for movement with the latter into and out of operative relation to the other feeding roller.

6. In a machine for treating fine tanned leather, a positively driven abrasive roll, a carriage movable toward and from the roll, gravity means for imparting to the carriage a constant tendency to move toward the roll, manipulating means for the carriage for moving it in opposition to the gravity means, stop means for the carriage for positively limiting its movement toward the roll, an unyielding non-rotativepresser plate mounted on the carriage to movetherewith and provided with a hard, smooth surface presented toward the abrasive roll to hold leather passing between the plate and roll substantially unyieldingly against the latter, and feeding rollers for delivering leather to and between the presser plate and abrasive roll, one of the rollers being mounted on the carriage for movement with the latter into and out of operative relation to the other feeding roller, and both rollers having coacting surfaces for engaging and stretching the leather before delivery to the abrasive roll.

7. In a machine for treating fine tanned leather, a positively driven abrasive roll, superposed feeding rollers for delivering the leather to the abrasive roll, and a non-rotatable presser plate with a hard, smooth, unyielding surface presented toward the abrasive roll, said presser'plate having an extension from the part of the presser plate coacting with the abrasive roll to the delivery portion of the feeding rollers.

8. In a machine for treating fine tanned leather, a positively driven abrasive roll, superposed feeding rollers :for delivering the leather to the abrasive roll, and a nonrotatable presser plate with a hard, smooth, unyielding surface presented toward the abrasive roll, said presser plate having an extension from the part of the presser plate coacting with the abrasive roll to the delivery portion of the feeding rollers, and 7 said extension being in partially embracing relation to the lower one of said feeding rollers.

9. In a machine for treating fine tanned leather, a positively driven abrasive roll,

a carriage having a constant tendency toward the abrasive roll, superposed feeding rollers, with one of the rollers mounted on the carriage, a non-rotatable presser plate with a hard, smooth unyielding surface presented toward the abrasive roll, said presser plate being mounted on the carriage in partially embracing relation to the lower one of the feeding rollers and movable only with the carriage, gravity means for imparting to the carriage a constant tendency toward the abrasive roll, means under the control of an operator for moving the carriage against the tendency of the gravity means, and adjustable stop means for the carriage having a manipulating portion extended into reach of an operator on the side of the carriage remote from the abrasive roll.

abrasive rol'l, gravity means having a constant tendency to move the carriage, the presser plate and the feeding roller on the carriage toward the abrasive roll, a treadle under the control of an operator for moving the carriage in opposition to the gravity means, and stop means for the carriage limiting its movement with the presser plate toward the abrasive roll, said stop means 10 having manipulating means extended into 1,2os,11e

reach of an operator on the side of the cat'- riage remote from the abrasive roll.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two Witnesses.

OTTO FELIX FEIX.

Witnesses:

JAooB Enema, \VILLIAM FRINK. 

